Technical Specification

CPKM3000 Integrated Meter complies with the following standards:

Standards under scope

EN 50470-3:2022

IEC 62052-11:2020

IEC 62052-21:2020

IEC 62052-31:2020

Environmental Specifications

The electrical specifications define the operating voltage, current ranges, power consumption, and accuracy class required for the reliable performance of the CPKM3000 meter.

Power

Self-powered (via measured voltage)

Consumption

<2 W, <10 VA (per port)

Ist

0.025 A

Imin

0.25 A

Itr

0.5 A

Iref

5 A

Imax

32 A

230V/400VAC

400 V AC phase-to-phase

230 V AC phase-neutral, neutral connection mandatory

Frequency

45-65 Hz

Accuracy class

Active energy: Class B (EN 50470-3)

Working temperature

-25 to 70 °C

Note: LCD performance degraded at <-20 °C

Storage temperature

-40 °C to 80 °C

Mechanical environment

Class M1 - 2014/32/EU - Measuring Instrument Directive

Electromagnetic environment

Class E2 - 2014/32/EU - Measuring Instrument Directive

Energy direction measurement

Bi-directional

LED Specifications

The table below lists the LED specifications for the meter.

LED Specifications
Feature Specification

Pulse weight

20000 imp / kWh

Color

Red

General Features

The following table summarizes the general features of the meter.

General Features
Feature Specification

Connectors

 

Protection grade

IP41 – Meter shall be installed in an enclosure with minimum IP54 degree protection

Output Specifications

The table below describes the output specifications for the meter.

Output Specifications
Feature Specification

Pulse output

Proportionate to measured active energy (EN 62052-31)

Protection Against Electrical Shock

The Koala CPKM3000 is designed to be installed inside an AC EVClosed Electric Vehicle charger. To ensure protection against electrical shock, the upstream circuit must be equipped with a Residual Current Device (RCDClosed Residual Current Device) that meets the following requirements:

  • Tripping current: 30 mA

  • Type: At least Type A

  • Nominal current rating: 40 A

Overcurrent and Short-Circuit Protection

To prevent overcurrent or short-circuit hazards, an upstream modular circuit breaker must be installed with the following characteristics:

  • Nominal current rating: 40 A

  • Configuration: 3p+N or 4-pole protection

  • Minimum short-circuit rating: 6 kA

  • Curve type: Minimum Curve B or Curve C

A combined protection device such as an RCBOClosed Residual Current Breaker with Overload Protection (Residual Current Breaker with Overcurrent Protection) may also be used, provided it satisfies the criteria outlined above.

MID Assembly Instructions

CPKM3000 Integrated Meter has been designed to be assembled within a ChargePoint Koala EVClosed Electric Vehicle charger. The following pictures shows the assembly:

  • First, slide the MIDClosed Measuring Instruments Directive METER (B) over the blades from AC board (A)

  • Rotate and lock down into the ACB.

  • Take the entire sub-assembly (E) and install over Koala rear housing (B).

The housing includes a window from which the CPKM3000 display can be observed.